In reality, FCP for iPad is just a way of keeping the idea of an iPad as a Pro creator device alive for a while longer.
In my opinion, Apple would do better to more clearly delineate its product lines: iPad for people who need basic to medium functionality without the problems inherent with a desktop operating system, the Mac for advanced needs but with more of a learning curve.
Currently the Mac is too dumbed down and the iPad is becoming too complicated for casual users.